Synthesis and characterization of modified phenolic resins for composites with enhanced mechanical properties

Cardona, F. and Moscou, C. (2009) Synthesis and characterization of modified phenolic resins for composites with enhanced mechanical properties. In: 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM20): Futures in Mechanics of Structures and Materials, 2-5 Dec 2008, Toowoomba, Australia.

[img]
Preview
Text (Accepted Version)
ACMSM20-CardonaF.pdf

Download (101Kb)

Abstract

Resole phenolic resins were modified by forming copolymers with Cardanol, which is the main component of Cashew nut shell liquid (CNSL). The modified phenolic resins were prepared at various mole ratios of phenol to cardanol and the polymerization was carried out under basic conditions. In the synthesis a maximum content of 40% of Cardanol in the resin was possible to obtain, as a higher Cardanol content resulted in the formation of a resin with an extremely high viscosity. The effect of replacement of phenol by Cardanol on the thermal and mechanical properties of resole resins was experimentally investigated. An increases in the content of Cardanol resulted in a proportional increases in flexibility and the fracture toughness together with a decreases in the flexural modulus of the cured resins. The higher toughening effect of replacing phenol with Cardanol was obtained with the total Phenol:Formaldehyde ratio of 1.0:1.25 in the synthesis of the resin. Also a direct proportionality between the amount of Cardanol incorporated in the resins and the decreases in the crosslink density was observed.


Statistics for USQ ePrint 6515
Statistics for this ePrint Item
Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2008 Taylor & Francis Group, London. Permanent restricted access to published version in accordance with the copyright policy of the publisher. Print held at USQ 624 FUT
Depositing User: ePrints Administrator
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 23 Dec 2009 04:25
Last Modified: 09 Oct 2014 23:53
Uncontrolled Keywords: composite materials; Cardanol; phenolic resin; flexural tests; cashew nut shell liquid
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870302 Metals (e.g. Composites, Coatings, Bonding)
URI: http://eprints.usq.edu.au/id/eprint/6515

Actions (login required)

View Item Archive Repository Staff Only